I’m afraid taking a part time job might ________ my time for study. [ ]

下列各句中，划线成语的使用不恰当的一项是（ ）

___ smoking, he would not have got cancer in thelung

.My mother was tired. She spent all day the housework.

In order to ____ the debt, the couple has worked hard for years with little food and only a small room to live in and never a moment’s rest.